UPSs

[Ben Duncan]

They USED to make those back in the early 1980's for MAINFRAMES
I used to work on (LOL).

I have an OLD (25 Year old) Emmerson Power on-line UPS with 2 huge
transformers someone gave me about 5 or so years ago. I spent $400
replacing the batteries and then last year, one of the boards
went south on it. It weighs 600 LBS with batteries. I am rigging the
batteries into some old off-line UPS's.

What is called a "line isolation" transformer is what you want. It is
in essance a "power plant" with great big MOV's, some transformers, and other
odd assortment of parts. It makes the power silky smooth.

http://www.liebert.com/

Might be a place to look for these.


David Bandel wrote:
> On 11/29/05, Roger Oberholtzer <roger at opq.se> wrote:
> 
>>On Tue, 2005-11-29 at 10:16 +0100, Roger Oberholtzer wrote:
>>
>>[UPS stuff deleted]
>>
>>Switch 'off-line' and 'on-line' my earlier text. Too early...
>>
> 
> 
> Had already done that in my head while reading.
> 
> Well, I was curious if anyone had actually tried a motor -> steel
> shaft -> generator type of arrangement.  This would, of course isolate
> completely.  No spikes would ever get through.  Cost is around $700
> here, about the same as some of the other suggestions.
> 
> Will be looking at this hard.  Have lost too much gear to these kinds of spikes.
> 
> Thanx for all the suggestions/links.  Have added those to what I already have.
> 
> Ciao,
> 
> David A. Bandel
> --
> Focus on the dream, not the competition.
>             - Nemesis Air Racing Team motto
> 
> _______________________________________________
> Linux-users mailing list ( Linux-users at linux-sxs.org )
> Unsub/Password/Etc: http://mail.linux-sxs.org/cgi-bin/mailman/listinfo/linux-users
> 
> Need to chat further on this subject? Check out #linux-users on irc.linux-sxs.org !
> 
> .
> 

-- 
Ben Duncan   - VersAccounting Software LLC 336 Elton Road  Jackson MS, 39212
"Never attribute to malice, that which can be adequately explained by stupidity"
        - Hanlon's Razor